# CVE-2024-28834: Gnutls: vulnerable to minerva side-channel information leak

Status: published. Published: 2024-03-21. Updated: 2026-11-08.

A flaw was found in GnuTLS. The Minerva attack is a cryptographic vulnerability that exploits deterministic behavior in systems like GnuTLS, leading to side-channel leaks. In specific scenarios, such as when using the GNUTLS_PRIVKEY_FLAG_REPRODUCIBLE flag, it can result in a noticeable step in nonce size from 513 to 512 bits, exposing a potential timing side-channel.

## Remediation

- workaround: Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability. (source: CNA: redhat)

## Affected products and versions

-  /  (gnutls): 3.7.6-23 (affected). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8 (gnutls): ≥ 0:3.6.16-8.el8_9.3; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8.6 Extended Update Support (gnutls): ≥ 0:3.6.16-5.el8_6.4; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8.8 Extended Update Support (gnutls): ≥ 0:3.6.16-7.el8_8.3; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 9 (gnutls): ≥ 0:3.7.6-23.el9_3.4; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 9 (gnutls): ≥ 0:3.8.3-4.el9_4; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 9.2 Extended Update Support (gnutls): ≥ 0:3.7.6-21.el9_2.3; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 10 (gnutls): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 6 (gnutls): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 7 (gnutls): Version range not reported. Source: CNA: redhat
- Siemens / SIMATIC S7-1500 CPU 1518-4 PN/DP MFP: ≥ V3.1.0; < V3.1.5 (affected, custom). Source: ADP: siemens-SADP
- Siemens / SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP: ≥ V3.1.0; < V3.1.5 (affected, custom). Source: ADP: siemens-SADP
- Siemens / SIPLUS S7-1500 CPU 1518-4 PN/DP MFP: ≥ V3.1.0; < V3.1.5 (affected, custom). Source: ADP: siemens-SADP

## Severity and prioritization

- CVSS 3.1: 5.3 (medium); CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N; source: CNA: redhat

- CVSS 3.1: 5.3 (medium); CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N; source: NVD: secalert@redhat.com

- CISA KEV: No listing in collected sources

- EPSS: 0.72% as of 2026-11-07; percentile 54.30%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-327

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://access.redhat.com/errata/RHSA-2024:1784 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2024:1879 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2024:1997 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2024:2044 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2024:2570 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2024:2889 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/security/cve/CVE-2024-28834 (CNA: redhat; vdb-entry, x_refsource_REDHAT)

- https://bugzilla.redhat.com/show_bug.cgi?id=2269228 (CNA: redhat; issue-tracking, x_refsource_REDHAT)

- https://lists.gnupg.org/pipermail/gnutls-help/2024-March/004845.html (CNA: redhat)

- https://minerva.crocs.fi.muni.cz/ (CNA: redhat)

- http://www.openwall.com/lists/oss-security/2024/03/22/1 (ADP: CVE; x_transferred)

- http://www.openwall.com/lists/oss-security/2024/03/22/2 (ADP: CVE; x_transferred)

- https://access.redhat.com/errata/RHSA-2024:1784 (ADP: CVE; vendor-advisory, x_refsource_REDHAT, x_transferred)

- https://access.redhat.com/errata/RHSA-2024:1879 (ADP: CVE; vendor-advisory, x_refsource_REDHAT, x_transferred)

- https://access.redhat.com/errata/RHSA-2024:1997 (ADP: CVE; vendor-advisory, x_refsource_REDHAT, x_transferred)

- https://access.redhat.com/errata/RHSA-2024:2044 (ADP: CVE; vendor-advisory, x_refsource_REDHAT, x_transferred)

- https://access.redhat.com/errata/RHSA-2024:2570 (ADP: CVE; vendor-advisory, x_refsource_REDHAT, x_transferred)

- https://access.redhat.com/errata/RHSA-2024:2889 (ADP: CVE; vendor-advisory, x_refsource_REDHAT, x_transferred)

- https://access.redhat.com/security/cve/CVE-2024-28834 (ADP: CVE; vdb-entry, x_refsource_REDHAT, x_transferred)

- https://bugzilla.redhat.com/show_bug.cgi?id=2269228 (ADP: CVE; issue-tracking, x_refsource_REDHAT, x_transferred)

- https://lists.gnupg.org/pipermail/gnutls-help/2024-March/004845.html (ADP: CVE; x_transferred)

- https://minerva.crocs.fi.muni.cz/ (ADP: CVE; x_transferred)

- https://people.redhat.com/~hkario/marvin/ (ADP: CVE; x_transferred)

- https://security.netapp.com/advisory/ntap-20240524-0004/ (ADP: CVE; x_transferred)

- https://lists.debian.org/debian-lts-announce/2024/09/msg00019.html (ADP: CVE)

- https://cert-portal.siemens.com/productcert/html/ssa-398330.html (ADP: siemens-SADP)

- https://access.redhat.com/errata/RHSA-2024:1784 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2024:1879 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2024:1997 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2024:2044 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2024:2570 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2024:2889 (secalert@redhat.com)

- https://access.redhat.com/security/cve/CVE-2024-28834 (secalert@redhat.com)

- https://bugzilla.redhat.com/show_bug.cgi?id=2269228 (secalert@redhat.com)

- https://lists.gnupg.org/pipermail/gnutls-help/2024-March/004845.html (secalert@redhat.com)

- https://minerva.crocs.fi.muni.cz/ (secalert@redhat.com)

- http://www.openwall.com/lists/oss-security/2024/03/22/1 (af854a3a-2127-422b-91ae-364da2661108)

- http://www.openwall.com/lists/oss-security/2024/03/22/2 (af854a3a-2127-422b-91ae-364da2661108)

- https://access.redhat.com/errata/RHSA-2024:1784 (af854a3a-2127-422b-91ae-364da2661108)

- https://access.redhat.com/errata/RHSA-2024:1879 (af854a3a-2127-422b-91ae-364da2661108)

- https://access.redhat.com/errata/RHSA-2024:1997 (af854a3a-2127-422b-91ae-364da2661108)

- https://access.redhat.com/errata/RHSA-2024:2044 (af854a3a-2127-422b-91ae-364da2661108)

- https://access.redhat.com/errata/RHSA-2024:2570 (af854a3a-2127-422b-91ae-364da2661108)

- https://access.redhat.com/errata/RHSA-2024:2889 (af854a3a-2127-422b-91ae-364da2661108)

- https://access.redhat.com/security/cve/CVE-2024-28834 (af854a3a-2127-422b-91ae-364da2661108)

- https://bugzilla.redhat.com/show_bug.cgi?id=2269228 (af854a3a-2127-422b-91ae-364da2661108)

- https://lists.debian.org/debian-lts-announce/2024/09/msg00019.html (af854a3a-2127-422b-91ae-364da2661108)

- https://lists.gnupg.org/pipermail/gnutls-help/2024-March/004845.html (af854a3a-2127-422b-91ae-364da2661108)

- https://minerva.crocs.fi.muni.cz/ (af854a3a-2127-422b-91ae-364da2661108)

- https://people.redhat.com/~hkario/marvin/ (af854a3a-2127-422b-91ae-364da2661108)

- https://security.netapp.com/advisory/ntap-20240524-0004/ (af854a3a-2127-422b-91ae-364da2661108)

- https://cert-portal.siemens.com/productcert/html/ssa-398330.html (0b142b55-0307-4c5a-b3c9-f314f3fb7c5e)

## Provenance

- CNA: redhat: https://www.cve.org/CVERecord?id=CVE-2024-28834; retrieved 2026-11-08; source updated 2026-11-08

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-28834; retrieved 2026-11-08; source updated 2026-11-08

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2024-28834; retrieved 2026-11-08; source updated Not reported

Revision: 85baec8038af2ccebfdd525f703378cc4a7fe3655ed6b930edde394d89fd0528

Canonical: https://y2.dev/cve/CVE-2024-28834

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